Bose Corporation

Austin Mackey

Wontak Kim

Donna Marie Sullivan

Christopher Ratcliffe

Joseph A Coffey, Jr

Brandon Leo Hicks

An apparatus includes a printed wiring board (PWB) that defines an aperture. A microphone is mounted on the PWB such that the aperture provides an acoustic path to the microphone. An acoustic interface member defines a cavity that is acoustically coupled to the microphone via the aperture. A first gasket between the printed wiring board and the acoustic interface member forms an acoustic seal. A housing is included, and a second gasket is disposed between the acoustic interface member and the housing to form an acoustic seal. An acoustic chamber is defined by a sealed volume that extends from a first (bottom/inner) surface of the housing down to a junction between the microphone and the PWB. The housing defines apertures which provide an acoustic path between a region external to the housing and the acoustic chamber. The acoustic chamber and the apertures in the housing form a Helmholtz resonator.

Microphone cavity

The technology described in this document can be embodied in an apparatus that includes an array of multiple microphones, and a passive directional acoustic element disposed between at least two of the multiple microphones. The passive directional acoustic element includes a pipe having an elongated opening along at least a portion of the length of the pipe, and an acoustically resistive material covering at least a portion of the elongated opening. One or more structural characteristics of the passive acoustic element is configured for capturing a target frequency range in accordance with a target beam pattern associated with the array.

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Brighton, MA, United States of America

Austin Mackey